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37 papers · 1 filter
Multimode Hong-Ou-Mandel Interferometry
S. P. Walborn, W. A. T. Nogueira, A. N. de Oliveira +2
We review some recent experiments based upon multimode two-photon interference of photon pairs created by spontaneous parametric down-conversion. The new element provided by these…
Quasi-stationary simulation of the contact process
Ronald Dickman, Marcelo Martins de Oliveira
We review a recently devised Monte Carlo simulation method for the direct study of quasi-stationary properties of stochastic processes with an absorbing state. The method is used t…
Universal and deterministic manipulation of the quantum state of harmonic oscillators: a route to unitary gates for Fock State qubits
Marcelo Franca Santos
We present a simple quantum circuit that allows for the universal and deterministic manipulation of the quantum state of confined harmonic oscillators. The scheme is based on the s…
Generation of maximally entangled states of qudits using twin photons
Leonardo Neves, G. Lima, J. G. Aguirre Gómez +3
We report an experiment to generate maximally entangled states of D-dimensional quantum systems, qudits, by using transverse spatial correlations of two parametric down-converted p…
Two cavity modes in a dissipative environment: cross decay rates and robust states
R. Rossi, A. R. Bosco de Magalhães, M. C. Nemes
We investigate the role of the cross decay rates in a system composed by two electromagnetic modes interacting with the same reservoir. Two feasible experiments sensitive to the ma…
Spacetime quantization induced by axial currents
S. Carneiro, M. C. Nemes
In the present contribution we show that the introduction of a conserved axial current in electrodynamics can explain the quantization of electric charge, inducing at the same time…